"An international agency like IOM cannot get involved in internal politics" says Antonio Vitorino, the Director-General of the UN's International Organization for Migration and current candidate for re-election to the position. Speaking in an interview with AFP ahead of an IOM leadership vote in mid-May, Vitorino explains "there are different drivers" when it comes to migration, but "there are more people on the move because of climate change than because of conflicts." IMAGES AND SOUNDBITES